Old Inauguration Day is observed annually on March 4 to commemorate the historical inauguration date for president-elects and newly elected senators in the United States before the adoption of the Twentieth Amendment. This amendment, passed in 1933, changed the inauguration dates, moving them from March 4 to January 20 for the president and vice president, and from March 4 to January 3 for members of Congress. The holiday serves as a reminder of the reasons behind this constitutional change, which included allowing the president-elect sufficient time to transition to the nation's capital and ensuring that the incoming Congress would handle any electoral deadlocks. The day is also referred to as the "Lame Duck Amendment" due to the diminished power of outgoing officials during the transition. While specific customs for observing Old Inauguration Day are not detailed, it reflects on the historical significance of the inauguration process in the U.S.